I thought so too. But it’s already here.
In 2017, Escorts unveileved their Electric Tractor (Source). They have been exporting it since 2019. Now in 2021, Escorts is the first manufacturer to get approval for selling Electric Tractors in India:
According to the above, the Motor for Escorts’ Electric Tractors will be manufactured by Kirloskar Electric Company (Listed). FYI Kirloskar Industries (Also listed) holds a sizeable stake in Swaraj Engines.
At the moment, the pros are the fact that there is no engine and hence, the maintenance costs are low. This is apart from the obvious benefit to the environment. The cons are the low battery life, but I’m sure this will be fixed in due time. Another important drawback is that Electric Tractors can’t match the raw power of Diesel ones, at least not with current technology. So whether this is a scalable solution to all tractor sizes is a question that needs answering.
John Deere, the “Tesla of Tractors”, certainly seems to think so:
Some counter-views are provided in this article, where experts say Electric Tractors will not have the same power as Diesel ones.
I would invite the view of long term investors in this company like @dd1474